Liquid-fuel-burning apparatus



W. N. BEST.

LIQUID FUEL BURNING APPARATUS. APPLICATION FILED. DEC=27. 1919.

1307,51 1, Patented Feb. 21, 1922.

I ,HJIIII II Iiilflllllllli v MN: I

' III/VE/VTOR ATTORNEY the regulation maintained free from tamperpletely burned without smoke in Fuel-Burning Apparatus,

the passage "of liquid" fuel at UNITED STATES PATENT WOFFHCEQ WIIJII'IAM, N. BEST, OF BROOKLYN, NEW YORK, AS SIGNOR T0 W. N. BEST, INQ, OF NEW YORK, N. Y., A. CORPORATION OF NEW YORK. I

LIQUID-FUEL-IBURN IN G APPARATUS.

Application filed December 27, 1919. Serial 170. 347,77

that it may be locked and the operator thus prevented from gaining access to the nipple or thimble for purposes of exchange or enlar ement of the aperture. n the accompanying drawings, I have illustrated one embodiment of my invention, although it willbe evident that others may be readily designed within the spirit of my mventlon and without departing from the scope thereof as defined in the appended To all whom it may "concern:

Be it known that I, WILLIAM N. Bns'r, a citizen ofthe United States, and a resident of Brookl n, in the county of Kings and State of ew York, haveinvented certain new and useful Improvements in Liquidof which the following is a specification.

This invention relates to liquid fuel burning systems and more particularly to those systems in which the liquid or semiplastic claims. 7 fuel is sprayed or atomized by the expans on In these drawings: v of a fluid under high pressure escaplng Figure 1 is a side elevation ofa portionof a liquid fuel burmng outfit incorporating my improved construction and showing the burner in vertical section;

Figure 2 is a central longitudinal section throu h the improved regulating or controlling evice, said section being taken on the line'2-2 of Figure 3;

Figure 3 is I to the plane of, Figure 2;

Figure 4 is an end view;

Figure '5 is an end view of the nipple or thimble;

Figure 6 is a central longitudinal section on the'line 6-6 of Figure 5; and a Figure 7 is a view similar to Figure 6,but showing a nipple having a larger passage.

I have illustrated my improved construction in connection with a burner similar in details of construction and operation with that shown in the patent of Annie H. Best across the fuel outlet. In order to obtain proper combustion, it. is essential that the quantity ofliquid fuel delivered should ,not be in excess of that which can pro erly burn with the available air supply. f a larger quantity of fuel be delivered, no increased heating efiect is secured and smoke Wlll be produced. In many places in' which theburner is used, the person in charge cannot ascertain whether ornotsmoke is being produced without traveling to some little distance from the burner in order to see the top of the stack. As a result I have found that there is a tendency on the part of the operator to produce a smoky 'fiame, contrary to the ordinances of many cities, when be en deavors to get the maximum heating efiect, The main object of my invention is to provide means whereby the flowroff fuel :to the burner may be regulated and controlled and in or readjustment by the operator. v this construction Incarrying out my invention I provide, pipes 10 and 11- at some point in the liquid fuel supply lme, couplings includin a" threaded nipple, screwed into one o the con ling .members and having an aperture whic W111 prevent a greaterrate than said fuel can be properly and com thecombns tion chamber. This perforatedfandthread-- ed nippleis of such constructionthat' when the coupling members are separatedmt may be readily removed, or replaced by one having a larger or smaller passage. The thunble or nipple is so designed and secured that it cannot fall out or become accidentally disg placed when the coupling membersareseparated. It cannot be operated or nan-ipulated from the exterior or while liquid under pressure is passing through the line. The

the burner head has two the other, 11, for liquid or semi-plasticfuel, such as .fuel oil, crude oil,*tar or the like. The burner head has a. fuel passage 12 ter-' minatingv in an upwardly facing outlet 13 and has an expanslve-fluid passage 14 terminating in an outlet 15 .de iverin substantially at right angles across the ueloutlet 13. The burner head has a' nozzle piece 16 defining the upper side of the expansive fluid outlet 13, this nozzle piece being held in lace by a bolt 17 or other suitable means. I (ii) not wish to be in 'any way limited to this specific construction, or even to this type of construction, as my invention is ap licable to anysystem in which the liquidfilel is delivered to a atomized by the expansion or flow of a fiuld.

coupling is preferably of such construction No. 1,351,550, issued August 31st, 1920. In connected thereto, one of these, 10, is for steam or compressed air and burner or nozzle and there 4 a side elevation at right angles At somepoint in the liquid fuel supply line between the source of supply and the burner, I provide my improved regulating means. This may be closely adjacent to the burner and beyond the usual regulating cock and shut-off valve, or it may be farther back in the line in the rear of these usual parts.

In the specific form illustrated there are provided two cOupling members 18 and 19 having abutting ends and means for rigidly securing these abutting ends together; The securing means is shown as a collar 20 threaded on to a neck or extension of the members 19 and having an inwardly extending flange engaging with the opposite side of a seat or shoulder 22 on the member 18.

One of these members,.for instance, the member 18 has an enlarged threaded socket or aperture in its end adapted to receive the externally threadedjnipple or thimble 23.

-This is shown as having a peripheral collar or flange 24L limiting the extent to which it can be screwed intothe socket and havlng 'fla-nges or butterfly-nut extensions 25 which facilitate the-insertion or removal of the nipple. The outer end of the nipple is preferably. convex and through the end wall is a passage 26, the size of which is accurately determined in accordance with the character of fuel employed, the pressure under which it is delivered, the size and character of'the burner and the character of the combustion chamber, particularly regarding the available air supply of the latter; The passage 26 is preferably somewhat conical, the outer end which receives the liquid being of smaller diameter.

The member719 has a chamber or socket 27 in its end which receives the projecting end portion of the thimble,'as shown particularly in Figure 2. The separation of the two members of the coupling by the unscrewing of. the member 20 leaves the" thimblerigidly and firmly securedto the member 18, but projecting from the end surface ofthe latter so that the thimble may be'unscrewed by fingers or with a wrench, screw driver or other tool. It is important that upon the separation of the coupling members, thethimble shallnot'be free to fall out:or become accidentally detached; from. the part carrying it. I may prov-idea seriesof these thimblesor nippleswith difi'erent. size passages therethrough so thatiafter proper exa'mlnation-or experi 1 mentation a thinible having the proper size otpassageimaybe inserted and the'fiow of too much liquidto the burner thus prevented. --In Figure 6, I have shownone thinible. and in Figure 7 :a second thimblef with larger passage 26 In order to prevent the operator fromre movingtheth mble, or enlarging th -p age, orvgaining access to the thimble forf ,purposes of removing or tampering ith prevent rotation of the. collar 20 whenthe key is in place. To prevent removal of the key any suitable locking means' may be em ployed. .I have shown a padlock 31 having the bolt or other secured'part thereofpassing registering apertures in the lugs 29; and engaging with an outer side of a key '30. A key of the formshown cannotbe moved endwise'in either direction to release the collar 20 until afterthe padlock 31 has'been removed. i

By means of my i proved construction the system.- may be setso that more than the'predet-ermined amount of fuel cannot be delivered to the burner although only a smallelrl amlount mziyfiog as a result'of partia y c osin t e or ina re latin valve. With thi valve wide' dpen t lie operator cannot deliver such a, quantity of liquid fuel to the burner as will resultrin the production of smoke. If the device he used in connection with heatingv or power plants in municipalities'having anti-smoke ordinances, the. ownermay practically insure himself against liahilityof violation of the law through carelessness or ignorance on the part of the employees supervising the roduction of the heat.

ving thus described myv invention what I" claim as newand desire tosecureby Let; ters'Patentisr f I 1. The combination with a liquid fuel burner having ailiquid'fueil outletfanjd an expansiveflfluid outlet'f delivering therei across to spray the liquid fuelv intdlthe r combustion chamber," of means "for control-f 1 ling the delivery of' liquid to its outlet in eluding a'pair of separable coupling members'in theisupplyl conduittofsaid liquid fuel outlet; and andependent off the jsupplycon duit 'to sa'1d expansive "fluid outlet, and: 8,,

thiinble securedi, one? of said :coupling members butunattached "to the fother, and having afpassa'ge theretliroughi ofe{prede-L 'termined' cross-sectional l area, materially Smaller. theyliquid fuel ontlet'of'the, burner. w a a 2. The fwmbination withi fuel I burnenhaving'a'liquid "fuel outletland anv expan'slve fluid outlet delivering there across to"'spray theliquid fuel into the c ombust1on[ 'chamb er,' of a regulatog in theuliquid fuel jsupplyf conduit [leading fto'f said liquid fueloutlet "andincludinga pair of coupling members detachably' secured together, and

a thimble detachably threaded into the end 4. A liquid fuel regulator including a air of one of said members and carried solely of coupling members, one of said mem ers by said member, and having a fuel regulathaving a recess in the end thereof and a ing passage therethrough materially smaller pair of lugs n the side thereof and the than the liquid fuel outlet from the burner. other of said members having a threaded 25 3. The combination with a liquid fuel socket ,in the end, a nipple having afuel burner having a liquid fuel outlet and an regulating passage therethrough and detachexpansive fluid outlet delivering there-across ably secured Within said threaded socket to spray the liquid fuel into the combusand projecting axially into said recess, a tion chamber, of a fuel regulator in the concollar engaging with said second mentioned 30 duit delivering to said liquid fuel outlet member and threaded on to said first and including a pair of coupling members mentioned member and having a serrated having directly abutting ends, a collar for peripheral flange, a key disposed between detachably securing said members together said In s and engaging with said flange, and a third member carried by but detachand 100 ing means for retaining said key 35 able from one of said coupling members in position. and projecting into but unattached to the Signed at New York, in the county of other coupling member and having a fuel New York and State of New York, this regulating passage .therethrough materially 26th day of December A. D. 1919. smaller than the liquid fuel outlet of the burner. WILLIAM N. BEST. 

